Package org.apache.calcite.rel

Class RelShuttleImpl

java.lang.Object

org.apache.calcite.rel.RelShuttleImpl

All Implemented Interfaces:

RelShuttle

Direct Known Subclasses:

ProjectCorrelateTransposeRule.RelNodesExprsHandler, RelDecorrelator.CorelMapBuilder, RelHomogeneousShuttle

public class RelShuttleImpl
extends java.lang.Object
implements RelShuttle

Basic implementation of RelShuttle that calls RelNode.accept(RelShuttle) on each child, and RelNode.copy(org.apache.calcite.plan.RelTraitSet, java.util.List) if any children change.

Field Summary

Fields

Modifier and Type	Field	Description
protected java.util.Deque<RelNode>	stack

Constructor Summary

Constructors

Constructor	Description
RelShuttleImpl()

Method Summary

Modifier and Type	Method	Description
RelNode	visit(TableFunctionScan scan)
RelNode	visit(TableScan scan)
RelNode	visit(LogicalAggregate aggregate)
RelNode	visit(LogicalCorrelate correlate)
RelNode	visit(LogicalExchange exchange)
RelNode	visit(LogicalFilter filter)
RelNode	visit(LogicalIntersect intersect)
RelNode	visit(LogicalJoin join)
RelNode	visit(LogicalMatch match)
RelNode	visit(LogicalMinus minus)
RelNode	visit(LogicalProject project)
RelNode	visit(LogicalSort sort)
RelNode	visit(LogicalUnion union)
RelNode	visit(LogicalValues values)
RelNode	visit(RelNode other)
protected RelNode	visitChild(RelNode parent, int i, RelNode child)	Visits a particular child of a parent.
protected RelNode	visitChildren(RelNode rel)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

stack

protected final java.util.Deque<RelNode> stack

Constructor Detail

RelShuttleImpl

public RelShuttleImpl()

Method Detail

visitChild

protected RelNode visitChild(RelNode parent,
                             int i,
                             RelNode child)

Visits a particular child of a parent.

visitChildren

protected RelNode visitChildren(RelNode rel)

visit

public RelNode visit(LogicalAggregate aggregate)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(LogicalMatch match)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(TableScan scan)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(TableFunctionScan scan)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(LogicalValues values)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(LogicalFilter filter)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(LogicalProject project)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(LogicalJoin join)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(LogicalCorrelate correlate)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(LogicalUnion union)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(LogicalIntersect intersect)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(LogicalMinus minus)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(LogicalSort sort)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(LogicalExchange exchange)

Specified by:

visit in interface RelShuttle

visit

public RelNode visit(RelNode other)

Specified by:

visit in interface RelShuttle